Coordinate input instrument



FIG. 1 is a bottom-front-right perspective view of a coordinate input instrument according to our new design;

FIG. 2 is a top-rear-left perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof, wherein a left side elevation view is mirror symmetrical to the right side elevation view;

FIG. 5 is a rear elevational view thereof, a

FIG. 6 is an enlarged top plan view thereof; and,

FIG. 7 is an enlarged bottom plan view thereof. 

CLAIM The ornamental design for a coordinate input instrument, as shown and described. 